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wpftextformatter中最后一行的完全对正

wpf .net c#

google dev · 技术社区 · 6 年前

TextFormatter . 我需要证明每段中的行。

I need to justify the last line in each
paragraph I need to justify the last li
ne in each  paragraph I need to justify 
the  last line in each paragraph I need 
to    justify    the   last   line   in

如何做到这一点?

提前谢谢!!

1 回复 | 直到 6 年前

codeDom 6 年前

TextSource 实施,在 GetTextRun 函数,在每段末尾返回 TextEmbeddedObject 宽度非常宽,高度为0的对象。

class MyTextEmbeddedObject : TextEmbeddedObject
{
    public override LineBreakCondition BreakBefore => LineBreakCondition.BreakAlways;

    public override LineBreakCondition BreakAfter => LineBreakCondition.BreakRestrained;

    public override bool HasFixedSize => true;

    public override CharacterBufferReference CharacterBufferReference => throw new NotImplementedException();

    public override int Length => 1;

    public override TextRunProperties Properties => GenericTextParagraphProperties._defaultTextRunProperties;

    public override Rect ComputeBoundingBox(bool rightToLeft, bool sideways)
    {
        throw new NotImplementedException();
    }

    public override void Draw(DrawingContext drawingContext, Point origin, bool rightToLeft, bool sideways)
    {
        throw new NotImplementedException();
    }

    public override TextEmbeddedObjectMetrics Format(double remainingParagraphWidth)
    {
        return new TextEmbeddedObjectMetrics(10000 /* very wide width */, 0, 0);
    }
}

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